A lot of people here are on the whole moustache twirling style of sith. And sure that's an option. But there's also a more subtle way. Example. Me (playing a DS character) and my group (which had 2 paragons) were tasked to find a imperial defector and get him safely to the rebels. And we did. I helped all the way. Then at the end I gave his safe house location to the local stormtroopers for credits and that entire rebel cell was destroyed. There can be common ground between a mixed group. Your players just have to be less murderhobo and get inventive.

from the old PBP
Posted September 17, 2018 (edited)
Dashtha turned and pulled a datapad from a table. Tapping through she repeated the information verbatim while her eyes flicked between the small screen and the duros.
"Ehmmm, samples 34c were administerd to our most recent....... volunteers......... the humans among them developed skin lesinos within 16 minutes and respiratory functions were impaired in 27. 4 of 6 succumbed to the effects. After effects are still being observed. The twi'lek produced no visible symptoms but also encountered failing respiratory function after 27 minutes. Timing of the symptom being within a few seconds within separate species interesting - investigate further. 2 of the 3 succumbed to their symptoms. The Zabrak developed........"

@Stormbourne keep OOC and IC separate, please.
The goal of all Dashthas spice research is to make a commercially viable non addictive strain of spice. In the old PBP it was established that most failed samples resulted in respiratory failure. Not instant death but in a few minutes. Maybe roll a red dice to see a result.

Dashtha rifles through the satchel hurriedly trying to determine what had been tampered with. She was not going to lose months of work to a **** weasly bastard. Or she hoped she wasn't. There had already been enough setbacks. And now people were waving guns around.
(Bastard is fine but we can't say dam, makes sense.)

"Zip it, Wan. We're on the clock now" Some little nagging feeling was burning in the back of Oola's mind. Something was wrong. But was it the situation at hand or was it with her? She felt anger banging to seethe deep down in her stomach. She didn't think it would help much but she drew her Lightsaber. The hum of the blade pulsed through the alleyway as she ignited it. Showering the area in a pink-purple glow. "HEY! YOU DRAG US DOWN TO THIS SHITHOLE THEN KEEP US WAITING?! LETS GET THIS PARTY STARTED SHALL WE?!"